2021年9月 – ページ 2 – プログラミング de 落描き

2021年9月27日2021年9月27日

Loop. Draw by openFrameworks

[ Video ]

[ About ]
四角形の座標を100分割して取得する。
もっと賢い方法を求む。

Get the coordinates of a rectangle by dividing it into 100 parts.
Seek a more clever way.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

	glm::vec2 make_point(int len, int param);

	ofEasyCam cam;
	ofMesh face, frame;
	vector<glm::vec3> base_location_list;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

glm::vec2 make_point(int len, int param);

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> base_location_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofNoFill();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (int z = -400; z <= 400; z += 400) {

		this->base_location_list.push_back(glm::vec3(-400, -400, z));
		this->base_location_list.push_back(glm::vec3(0, -400, z));
		this->base_location_list.push_back(glm::vec3(400, -400, z));

		this->base_location_list.push_back(glm::vec3(-400, 0, z));
		this->base_location_list.push_back(glm::vec3(0, 0, z));
		this->base_location_list.push_back(glm::vec3(400, 0, z));

		this->base_location_list.push_back(glm::vec3(-400, 400, z));
		this->base_location_list.push_back(glm::vec3(0, 400, z));
		this->base_location_list.push_back(glm::vec3(400, 400, z));
	}
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	float side = 300;
	float speed = 60;
	for(auto& base_location : this->base_location_list) {

		int param_start = ofRandom(100);
		int len = ofRandom(10, 80);
		int gap = 100 - len;
		for (int i = param_start; i < param_start + len; i += 2) {

			glm::vec3 base, next, location;
			base = glm::vec3(this->make_point(side, i), 0);
			next = glm::vec3(this->make_point(side, i + 2), 0);

			location = base + (next - base) / speed * (ofGetFrameNum() % (int)speed);
			this->setBoxToMesh(this->face, this->frame, base_location + location, side / 12.6 * 0.8);
		}

		float p = param_start + len + (gap / speed) * (ofGetFrameNum() % (int)speed);
		auto base = glm::vec3(this->make_point(side, p), 0);
		auto location = base;
		this->setBoxToMesh(this->face, this->frame, base_location + location, side / 12.6 * 0.8);

	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateX(295);

	ofSetColor(139);
	for (auto& base_location : this->base_location_list) {

		ofDrawRectangle(base_location, 300, 300);
	}

	ofSetColor(39);
	this->face.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);
	face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

	face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

	frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofNoFill();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableDepthTest();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int z = -400; z <= 400; z += 400) {

this->base_location_list.push_back(glm::vec3(-400, -400, z));

this->base_location_list.push_back(glm::vec3(0, -400, z));

this->base_location_list.push_back(glm::vec3(400, -400, z));

this->base_location_list.push_back(glm::vec3(-400, 0, z));

this->base_location_list.push_back(glm::vec3(0, 0, z));

this->base_location_list.push_back(glm::vec3(400, 0, z));

this->base_location_list.push_back(glm::vec3(-400, 400, z));

this->base_location_list.push_back(glm::vec3(0, 400, z));

this->base_location_list.push_back(glm::vec3(400, 400, z));

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float side = 300;

float speed = 60;

for(auto& base_location : this->base_location_list) {

int param_start = ofRandom(100);

int len = ofRandom(10, 80);

int gap = 100 - len;

for (int i = param_start; i < param_start + len; i += 2) {

glm::vec3 base, next, location;

base = glm::vec3(this->make_point(side, i), 0);

next = glm::vec3(this->make_point(side, i + 2), 0);

location = base + (next - base) / speed * (ofGetFrameNum() % (int)speed);

this->setBoxToMesh(this->face, this->frame, base_location + location, side / 12.6 * 0.8);

}

float p = param_start + len + (gap / speed) * (ofGetFrameNum() % (int)speed);

auto base = glm::vec3(this->make_point(side, p), 0);

auto location = base;

this->setBoxToMesh(this->face, this->frame, base_location + location, side / 12.6 * 0.8);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateX(295);

ofSetColor(139);

for (auto& base_location : this->base_location_list) {

ofDrawRectangle(base_location, 300, 300);

}

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

//--------------------------------------------------------------

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size);

}

//--------------------------------------------------------------

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);

}

//--------------------------------------------------------------

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210927

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2021年9月26日

Big box and small boxes. Draw by openframeworks

[ Video ]

[ About ]
親となるランダムウォークと追随するランダムウォーク。

Parent random walk and following random walk.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();

	int base_len = 100;
	int number_of_satellite = 380;
	int number_of_log = 25;

	auto base_noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	auto base_location = glm::vec3(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250), ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250), 0);

	ofPushMatrix();
	ofTranslate(base_location);
	ofRotateY(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -360, 360));
	ofRotateX(ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -360, 360));

	ofFill();
	ofSetColor(39);
	ofDrawBox(glm::vec3(), base_len * 0.85);

	ofNoFill();
	ofSetColor(239);
	ofDrawBox(glm::vec3(), base_len * 0.85 + 0.1);

	ofPopMatrix();

	for (int i = 0; i < number_of_satellite; i++) {

		float noise_seed_x = ofRandom(1000);
		float noise_seed_y = ofRandom(1000);
		auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		location = glm::normalize(location) * base_len * 1.25;
		auto prev_location = glm::vec3();

		for (int k = 0; k < number_of_log; k++) {

			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + k) * 0.001), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + k) * 0.001), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
			auto tmp_base_location = glm::vec3(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250), ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250), 0);
			auto draw_location = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;

			if (k > 0) {

				ofSetLineWidth(0.5);
				ofSetColor(ofColor(39, ofMap(k, 0, number_of_log, 32, 255)));
				ofDrawLine(prev_location, draw_location);
			}

			prev_location = draw_location;
		}

		ofPushMatrix();
		ofTranslate(prev_location);
		ofRotateY(ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -PI * 2 * RAD_TO_DEG, PI * 2 * RAD_TO_DEG));
		ofRotateX(ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -PI * 2 * RAD_TO_DEG, PI * 2 * RAD_TO_DEG));
		
		ofSetLineWidth(1.5);

		ofFill();
		ofSetColor(239);
		ofDrawBox(glm::vec3(), base_len * 0.15);

		ofNoFill();
		ofSetColor(39);
		ofDrawBox(glm::vec3(), base_len * 0.15 + 0.1);

		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

int base_len = 100;

int number_of_satellite = 380;

int number_of_log = 25;

auto base_noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto base_location = glm::vec3(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250), ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250), 0);

ofPushMatrix();

ofTranslate(base_location);

ofRotateY(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -360, 360));

ofRotateX(ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -360, 360));

ofFill();

ofSetColor(39);

ofDrawBox(glm::vec3(), base_len * 0.85);

ofNoFill();

ofSetColor(239);

ofDrawBox(glm::vec3(), base_len * 0.85 + 0.1);

ofPopMatrix();

for (int i = 0; i < number_of_satellite; i++) {

float noise_seed_x = ofRandom(1000);

float noise_seed_y = ofRandom(1000);

auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

location = glm::normalize(location) * base_len * 1.25;

auto prev_location = glm::vec3();

for (int k = 0; k < number_of_log; k++) {

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + k) * 0.001), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + k) * 0.001), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto tmp_base_location = glm::vec3(ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250), ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250), 0);

auto draw_location = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;

if (k > 0) {

ofSetLineWidth(0.5);

ofSetColor(ofColor(39, ofMap(k, 0, number_of_log, 32, 255)));

ofDrawLine(prev_location, draw_location);

}

prev_location = draw_location;

}

ofPushMatrix();

ofTranslate(prev_location);

ofRotateY(ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -PI * 2 * RAD_TO_DEG, PI * 2 * RAD_TO_DEG));

ofRotateX(ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -PI * 2 * RAD_TO_DEG, PI * 2 * RAD_TO_DEG));

ofSetLineWidth(1.5);

ofFill();

ofSetColor(239);

ofDrawBox(glm::vec3(), base_len * 0.15);

ofNoFill();

ofSetColor(39);

ofDrawBox(glm::vec3(), base_len * 0.15 + 0.1);

ofPopMatrix();

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210926

[ほしいものリスト]
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2021年9月25日

Pattern of spinning spheres. Draw by openFrameworks

[ Video ]

[ About ]
球体の頂点を回転させた軌跡。

The locus of rotation of the vertices of a sphere.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	vector<ofMeshFace> triangle_list;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMeshFace> triangle_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetColor(255);
	ofSetLineWidth(1.5);
	ofNoFill();
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 1);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();

	int log = 20;
	int span = 600;

	for (int x = -span; x <= span; x += span) {

		for (int y = -span; y <= span; y += span) {

			ofPushMatrix();
			ofTranslate(x, y, 0);

			float noise_seed_x = ofRandom(1000);
			float noise_seed_y = ofRandom(1000);
			float noise_seed_z = ofRandom(1000);
			for (auto& triangle : this->triangle_list) {

				glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

				ofBeginShape();
				for (int i = 0; i < log; i++) {

					auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(1, 0, 0));
					auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(0, 1, 0));
					auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_z, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

					glm::vec3 location = glm::vec4(avg, 0) * rotation_z * rotation_y * rotation_x;
					ofVertex(location);

					if (i == log - 1) {

						ofFill();
						ofDrawSphere(location, 5);
						ofNoFill();
					}
				}
				ofEndShape(false);
			}

			ofPopMatrix();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofSetLineWidth(1.5);

ofNoFill();

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 1);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

int log = 20;

int span = 600;

for (int x = -span; x <= span; x += span) {

for (int y = -span; y <= span; y += span) {

ofPushMatrix();

ofTranslate(x, y, 0);

float noise_seed_x = ofRandom(1000);

float noise_seed_y = ofRandom(1000);

float noise_seed_z = ofRandom(1000);

for (auto& triangle : this->triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

ofBeginShape();

for (int i = 0; i < log; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_z, (ofGetFrameNum() + i) * 0.003), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

glm::vec3 location = glm::vec4(avg, 0) * rotation_z * rotation_y * rotation_x;

ofVertex(location);

if (i == log - 1) {

ofFill();

ofDrawSphere(location, 5);

ofNoFill();

}

ofEndShape(false);

}

ofPopMatrix();

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210925

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Amazon

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2021年9月
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